Add a pm8xxx-tm subdevice into pm8821-core. The pm8xxx-tm device
can be used to receive an interrupt when critical temperature
thresholds are reached. Since PM8821 does not have an ADC, it is
not possible to read a real time PM8821 die temperature using
this pm8xxx-tm device.
Change-Id: I3720c79a0546e8bc69044166f70dd4c313e84daa
Signed-off-by: David Collins <collinsd@codeaurora.org>
(cherry picked from commit 1604779c47df4bf003211c35e356210e689676d5)
56468a5ad1